TestingUseNopSleep is a utility for disabling sleep across the SDK for testing.

TestingUseReferenceTime is a utility for swapping the time function across the SDK to return a specific reference time for testing purposes.

NowTime is a value for getting the current time.

Sleep is a value for sleeping for a duration.

SleepWithContext will wait for the timer duration to expire, or the context is canceled.

Invalidator provides access to a type's invalidate method to make it invalidate it cache.